Select the word in which the silent letter pattern differs from the others.
Alumni
"Autumn", "column", and "solemn" all end with the letters "mn", where the final "n" is silent and not pronounced.
"Alumni" also contains the letters "m" and "n" together, but here the "n" is fully pronounced as part of the word.
Since "alumni" does not follow the silent "n" pattern seen in the other three words, it is the word that differs.
Choose the option that correctly completes the sentence:
The speaker's argument lacked sufficient evidence and therefore failed to _____ the audience.